Source engine games stutter on high-end PC.

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Bop

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System details are in my sig.

CS and TF2 both stutter ever couple of seconds. The game doesn't actually stop but the video will jitter. The netgraph shows no network lag, great ping(10-20ms) and no loss. I have no idea what it can be as all my other games run fine.
 
bump. Turning off SLi seems to have fixed it... great. What a waste of a video horsepower.

Is there any known fix?
 
See if there are any windows updates for it. There was a windows update for multicore processors because of a timing issue. Maybe something similar with SLi.
 
There are frequent threads in the Steam forums about TF2 having performance issues (SLI enabled being one of them). Lately, there are also a lot of people having issues with 8800 series cards in general. My FPS have dropped in some areas of maps since the 4/28 medic update.
 
Not sure what the problem is, but I also find myself having performance issues in TF2, for me though, that is the only game (other than Crysis... DUH).
 
Hard drive paging? has superfetch/indexer calmed down yet? You need to use Vista for about a week before the hard drive will stop being owned in the background.
 
Bop said:
System details are in my sig.

CS and TF2 both stutter ever couple of seconds. The game doesn't actually stop but the video will jitter. The netgraph shows no network lag, great ping(10-20ms) and no loss. I have no idea what it can be as all my other games run fine.
Click to expand...
I get a stutter in TF2 after a death. And game crashes often with hl2 errors and some other one about a heapsize.
 
As much as I love Nvidia, ATI definitely has the upper hand when it comes to Source engine games.
 
hungryJonJon said:
There are frequent threads in the Steam forums about TF2 having performance issues (SLI enabled being one of them). Lately, there are also a lot of people having issues with 8800 series cards in general. My FPS have dropped in some areas of maps since the 4/28 medic update.
Click to expand...

Just as a reference, here's a thread that's been going since last year with 1,900 posts and almost 100,000 views about poor performance:
http://forums.steampowered.com/forums/showthread.php?t=627025

Also a thread since the medic unlockables/gold rush update with other bugs/FPS issues:
http://forums.steampowered.com/forums/showthread.php?t=677432

And another thread about random FPS drops in more Source games:
http://forums.steampowered.com/forums/showpost.php?p=7644137&postcount=11

It seems with each update, TF2 gets slower and slower. Using mat_queue_mode 2 (one of the multi-processor commands) solves my frame rate problem but it is not fully supported and crashes from time to time. I am on an E6750 @ 3.2GHz with 8800 GT 512MB @ 684/1780/980, Win XP SP2.
 
There is no fps drop for me, the video simply hitches with SLi enabled. It looks like network lag at first.
 
I haven't fired up TF2 in a while but I did play HL2 EP2 and encountered the stuttering problem. I upgraded to the 175.16 WHQL drivers and it was smooth again. I'll try TF2 when I get home and see if I get any stuttering.
 
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